Daniel Meziat

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This paper describes the research carried out to obtain the advantages of ATM technology over legacy Ethernet networks. A protocol called “Cells In Frame” (CIF) allows to encapsulate ATM cells in Ethernet frames. We have implemented the CIF protocol in the kernel of the Linux operating system. Measures of speed, delay and delay variation have been carried(More)
In this paper a model is proposed to evaluate individually the normalized fatigue at the joint level. More specifically our model distinguishes the two antagonist muscle groups acting for each degree of freedom (in short dof). The fatigue model parameters are normalized torques, joint strength and the maximum holding time that a posture can be maintained.(More)
Satellite domains are becoming a fashionable area of research within the AI community due to the complexity of the problems that these domains need to solve. With the current US and European focus on launching satellites for communication, broadcasting, or localization tasks, among others, the automatic control of these machines becomes an important(More)
Interactive control of virtual characters through full-body movement requires accurately reproducing a performer's motion while accounting for surrounding obstacles. The authors' approach, based on a prioritized inverse kinematics solver, satisfies marker and preventive constraints simultaneously. Together with a coupled spine model, it yields virtual(More)
Interactive control of a virtual character through full body movement has a wide range of applications. However, there is a need for systems that accurately reproduce the motion of a performer while accounting for surrounding obstacles. We propose an approach based on a Prioritized Inverse Kinematics constraint solver. Several markers are placed on the(More)
In this paper we describe IPSS (Integrated Planning and Scheduling System), a domain independent solver that integrates an AI heuristic planner, that synthesizes courses of actions, with a constraint-based scheduler for reasoning about time and resources. IPSS is able to solve planning problems with time (precedence constraints, deadline, time windows, etc)(More)
This paper explores the potential of prioritized Inverse Kinematics for full body motion capture. We are especially interested in compensating for the use of a minimal set of sensors by proposing pertinent constraints associated with a priority level. We evaluate the believability issues and the performance requirements arising through a case study(More)